Since we offer the following three moldmaking processes and materials we will attempt to make your selection the right one for your project:

RTV Silicones (Room Temperature Vulcanization) Materials
A home vulcanizer (Vulc-A-Mold tool using raw silicone slabs)
Quick-Sil a fast setting RTV Silicone material

Each of the above has its advantages and limitations. First, you should consider the material of the original model you will be using for making your mold, its size, does it have any undercuts, how many pours (replicas you intend on making) and how many different molds you desire to make. By checking these you should be able to determine which material best suits your needs. Instructions for use of each of these materials appear on our website for you to peruse.

RTV silicones are easy to work with, provide detail reproductions and models can be of most any materials (since no heat nor pressure is applied during vulcanization), and of any size or shape. Simple open face molds (for objects that require only one side to be detailed and the reverse being a flat non-descript surface) can be made in 8 hours while a two-part mold generally is made in two 8-hour sessions over two nights. The limitations are as follows:

1. It takes longer to make a mold using this process.
2. The mold produced (with the higher temperature silicones up to 700degrees F) is not a long life mold. If the model does not have any undercuts (where you may tear the mold when releasing it) you should be able to obtain 25-40 pours (or less) before the mold is no longer useable. The low temperature silicones have a higher tear strength but will not accept casting materials over 450 degrees F without mold damage (pouring materials should be Alumilite-a super casting plastic, plaster, or resins). This material is better for models with slight undercuts as the mold is more flexible.
3. Material costs are higher.
4. For a two part mold you will need the mold release cream (#5001 & 40000 mold clay).

We offer the RTV in pints, quarts and gallons.
The high temperature silicones are numbered 20600 (pint), 20700 (Qt.) and 20800 (gal.)
The high tear strength silicones are numbered 20601 (pint), 20701 (Qt.) and 20801 (gal.)

Quick-Sil is a revolutionary new mold making material producing a very long lasting (1000ís of uses) silicone rubber mold that accurately reproduces detail with % shrinkage in only 15 minutes (for an open face mold) or 30 minutes for a double sided mold. This is a two-part (A&B) material that needs no careful or precise mixing. No messy liquids and no vulcanizer needed.

Models may be of almost any type material (no wax or hollow cast figures as pressure is required for satisfactory vulcanization). Paint removal of original model is not necessary. Complete Kit #50000 includes 2-lb Quick-Sil kit, adjustable wood mold frame press, mold release cream and 1- lb. mold clay. Limitations:

1. A mold frame press (item #5002) or jewelry mold frame is required for satisfactory results.
2. Model size limitations 7 ‡" in length, 4 ‡" width, 3 ‡" diameter.
3. Mold release cream required (item #5001).
4. Packed only in a 2-lb. Kit containing equal parts A&B cost $40 U.S. (this should allow you to make at least 2 molds of roughly 4x3x1" size).

The above information is presented to allow you to make the best choice of a method and material for your mold making projects. Complete instructions of the mold making process are provided with each material ordered.

Check our Internet site for "Monthly Internet Specials".